# Addictive Pro vs KASPAR

The clearest difference is price: Addictive Pro at $5.99 against KASPAR's $19.99. Addictive Pro also leads on update cadence (every 2 weeks vs every 16 months). KASPAR's advantage is ratings volume (91 vs 18). On rating, review sentiment, ads and in-app purchases there is nothing between them.

Addictive Pro costs $5.99 and KASPAR $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for Addictive Pro against 4.6 for KASPAR. That said, the two scores are not equally well evidenced: KASPAR has 91 ratings behind it against 18, so its average is the more settled of the two. Written reviews split almost evenly too, at 75% and 75% positive.

Addictive Pro ships an update every 2 weeks, KASPAR every 16 months. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Addictive Pro | KASPAR |
| --- | --- | --- |
| Price | **$5.99** | $19.99 |
| Rating | **[4.7 (18 ratings)](https://appshunter.io/ios/app/addictive-pro/id1130398188/reviews)** | [4.6 (91 ratings)](https://appshunter.io/ios/app/kaspar/id1245045964/reviews) |
| Number of ratings | 18 | **91** |
| Positive reviews | 75.0% of reviews | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 16 months |
| Monetization | Paid | Paid |
| Size | 58 MB | 64 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Harry Gohs](https://appshunter.io/developer/382428644) | [Yonac Inc.](https://appshunter.io/developer/288670023) |

## What reviewers say

### Addictive Pro

[App page](https://appshunter.io/ios/app/addictive-pro/id1130398188)

This app offers a powerful hybrid synthesis engine for creating complex and dynamic sounds. Explore wavetable, noise, virtual analog, and FM synthesis with extensive modulation and effects. It includes a polyrhythm arpeggiator and real-time control options for musical inspiration and sound design.

**Highlights:** Hybrid synthesis engine, Wavetable spectrum synthesis, Virtual Analog synthesis, Polyrhythm Arpeggiator, Real-time parameter control, Studio-standard effects section, AudioUnit Instrument support

**In-app purchases:** none


### KASPAR

[App page](https://appshunter.io/ios/app/kaspar/id1245045964)

This powerful synthesizer app offers 8 polyphonic engines with extensive morphing, layering, and modulation capabilities. Create complex sounds with 24 oscillators, 8 filters, and built-in stereo effects. It integrates seamlessly with DAWs and other music apps.

**Highlights:** 8 polyphonic synth engines, Multi-Engine Automorphing, Extensive modulation system, Poly aftertouch support, 2 stereo FX busses, Audio Unit plugin integration, Inter-App Audio and Audiobus support

**In-app purchases:** none

**What reviewers like**

- ✨ Incredible power and depth
- 🔊 Amazing and unique sound quality
- 👍 Easy to use and intuitive UI
- 💡 Highly configurable and flexible
- 🎛️ Advanced sound shaping possibilities

**What reviewers complain about**

- 🐛 Occasional crashes and instability
- 💻 High CPU usage
- 🐞 Bugs in AUv3 implementation
- 🖼️ UI scaling issues in some DAWs
- 🤔 Presets can be uninspired or limited

**Reported bugs**

- Sound muted in solo mode for some synths
- Synth crashes when loading as AUv3 in Roland Zenbeats
- FX chain not working
- Program change messages not followed as AUv3 in Cubasis internal track
- UI does not scale to full screen in Cubasis 3

**Requested features**

- Add a step sequencer
- Improve preset variety and inspiration
- Fix AUv3 program change issues
- Address UI scaling problems in DAWs
- Implement MIDI out functionality


## Frequently asked questions

### Is Addictive Pro free?

Addictive Pro costs $5.99, with no in-app purchases.

### Is KASPAR free?

KASPAR costs $19.99, with no in-app purchases.

### Which has better reviews, Addictive Pro or KASPAR?

Addictive Pro is rated higher. Addictive Pro averages 4.7 out of 5 from 18 ratings, while KASPAR averages 4.6 from 91 ratings.

### Do Addictive Pro or KASPAR have ads?

Neither Addictive Pro nor KASPAR shows ads.

### Which is updated more often, Addictive Pro or KASPAR?

Addictive Pro ships an update every 2 weeks, and KASPAR every 16 months. Most recently, Addictive Pro was updated on October 13, 2026 and KASPAR on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*